Hello, welcome to the Naked Scientists, I'm Chris Smith, and we are recording this program

at the Cambridge Science Center in the company of this very fine audience.

We also have four marine experts with us who will tell us who they are and where they come from.

I'm Lloyd Peck.

I work for the British Antarctic Survey and my work is really all about animals that live at very extreme

cold temperatures. I'm Vila R Smith I work at the British Trust for

mythology and I specialise in seabirds and I'm Mark Sping. I work for the Nature Conservancy,

a conservation organization and I have kind of big picture view of coral reefs and

mangroves around the world.

I'm Bill Amos. I work in the Department of Zoology and I'm

interested in the genetics of marine mammals.

And also with us our legendary stalwarts of kitchen science experimentation.

Ginny Smith and Georgia Mills, hello to both of you.

What have you got for us?

Ginny?

So we've got some fun experiments to do today.

We're going to build some sand castles and maybe even have a

little competition to see who's best at building sand castles, so prepare yourselves

for that. And we're also going to look at how fish managed to float.

Sounds exciting, shall we get started?

Lloyd, tell us a bit about your work then.

So you work in Antarctica.

...